Knock-down window frame



p 1938- o. M. EDWARDS 2,131,099

KNOCK-DOWN WINDOW FRAME Filed March 8, 1937 2 Sheets-Sheet 1 INVENTOR. 6 s M .QWMW

ATTORNEY 5 p 2 1 o. M. EDWARDS ,0

KNOCK-DOWN WI'NDOW FRAME Filed March 8, 1937 2 Sheets- Sheet 2 I INVENTOR.

Patented Sept. 27, 1938 UNITED STATES KNOCK-DOWN WINDOW FRAME Oliver M. Edwards, Syracuse, N. Y., assignor to The 0. M. Edwards Company Inc., Syracuse,-

N. Y., a. corporation of New York Application March 8,

1 Claim.

as distinguished from window frames for railway cars, buses, etc., although this window frame is usable in railway cars, buses, etc., but it is more particularly designed for large windows, as those for buildings, etc.

Window frames of this character have heretofore been shipped for the most part ready to place in the window openings and due to handling during loading and unloading from the trucks and from cars, are quite liable to be sprung, distorted or damaged, so that they are useless, or additional work isrequired to make them usable. Also, when supplied in large quantities to buildings, they are temporarily stored, one against the other, with the end ones leaning against a pillar or wall. This subjects those frames nearest the pillar or wall to heavy strains tending to distort them. The replacement or repairing of damaged frames is an item that results in a loss to the manufacturer or supplier. By making these metal frames in knock-down form, not only do they take up less shipping and storage space, but the liability of becoming damaged and distorted is almost eliminated.

More particularly, the invention has for its object a particularly simple joint between the upright and transverse frame members of the window frame, which joint lends itself to the ready assembly or setting up of the window frame for placement in the window opening and rigidly holds the frame members in rectangular form, or the object of the invention is a knock-down frame with .a joint w ch is readily assembled in square or true relation to each other without the exercise of skill on the part of workmen.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure l is a fragmentary elevation of a window frame embodying this invention.

Figure 2 is an elevation looking to the right in Figure 1.

Figure 3 is a sectional view on line 33, Figure 1, one of the sashes and its guide and the sash 55 guide for the other sash being shown in broken 1937, Serial N0. 129,615 (Cl. 189-75) line, it being understood that the window is a double hung window.

Figures 4 and 5 are fragmentary isometric views of one of the upright and transverse members respectively of this frame.

Figure 6 is an inner face view of the lower end of one of the upright members,'the lower transsill being shown in end elevation and as separated therefrom.

I and 2 designate respectively the upright members and the upper-rail member of the winthe lower rail member or sill ally sheet metal. Each upright member I is formed with a flat body portion and has cutwardly extending marginal'flanges 4, 5 which form an outwardly facing channel. The channel constitutes a box 6 for housing the sash weights, which counterbalance the sash'S. One of these flanges, as 4, is integrally secured or window stop.

The sashes S are located between the stops 1 and 9 and as here shown are provided with channels in their edges for receiving guide ribs R on a base, plate B lying against the body I and secured in position in any suitable manner. The channels in the edges of the sash are preferably lined with a non-metallic weather strip W with which the ribs R coact. The mounting and guiding of the sash per se forms no part of this invention. The transverse members or the upper and lower rails 2, 3 are also in One of the flanges III of the upper flange I3, against which abuts at window stop 1, when the parts are assembled. The flange I I also abuts at its ends against .a side edge of, the flange 4 at M,

when the parts are assembled.

The joint between the transverse member 2 and the upper end of each upright I comprises a flange each upright I and located at the upper end of at the upper end of the channel 6, this flange being the form of outwardly facill) usually a separate piece having an angular base l6 secured, as by welding, to the outer face of the body I, the flange extending the full width of the channel of the upright member I. The flange I is also secured to the flange 4 by a right angular bracket l1 secured to the flange 4 in any suitable manner, as by welding, so that the flange 4 is rigidly secured to the body I. The end portion l8 of each transverse member 2 laps and bears flatwise on the flange l5 and is clamped thereto. It is here shown as clamped thereto by a stud, preferably provided on the flange tending through an opening [9 in the lapping end portion l8 of the transverse frame member 2 A nut 20 threads on the stud against the upper face of the body of the frame member 2. The flanges l5 form a shelf on which the transverse member 2 rests and to which it is secured.

Owing to the wide bearing faces, due to the flange l5 and the lapping portion "3, the frame members are rigidly and squarely clamped together. In order to provide maximum bearing surface for the nut 20, it may be provided with an enlarged discoidal base 2| or instead of the discoidal base, a washer 22 may be provided, as shown in Figure 6.

When the frame members I, 2 are assembled, the corner 23 of the lapping portion of the member 2 fits substantially squarely into the angle of the flange 4, thus locating the member 2 relatively to the member I and causing it to be in proper alinement with the upright member I.

The corner 23 and the angular flange 4 constitute interfitting means which bring the frame members into proper alinement with each other, when being assembled, upon an endwise movement of the frame member 2, or to bring the upright and transverse members square with each other, when being assembled.

The lower transverse frame member or sill 3 is angular in form, as seen in Figure 6, with an inclined portion 25, and the lower end of each frame member I is shaped to conform to the contour of the sill 3 and hence formed with a notch 26 to receive a rectangular high beaded or stop portion 21 of the sill 3 corresponding to the stop iii of the top rail 2, and with an inclined portion conforming to the inclined portion 25 of the sill 3. A flange 28, corresponding to the flange I5, is arranged in the lower end of the channel 6 of each upright member, but at an incline, in

order to be in squarely abutting relation tothe inclined portion 25 of the sill 3. It is provided with a base flange 29, corresponding tothe base flange l6, which is secured, as by welding, to the body of the upright frame member I, and it is also further secured to the body I by an angular bracket 30, corresponding to the bracket H.

In shipping and storing the frame members can all lie flatwise or the members of each frame bundled together.

In setting the frame up, it is merely necessary to arrange the uprights with the studs 3| at the lower ends thereof extending through the holes 32 in the sills 3 and place and tighten the nuts thereon and in the same manner mounting the upper rail member 2 on the flanges l5 with the studs extending through the openings IS in the lapping portions l8 of the transverse upper member 2 and tighten the nuts thereon, the notches 26 fitting the raised, beaded or stop portion 21 of the sill, and the corner portion 23 of the rail member fitting into the angle of the flanges l4. The fact that the flanges l5 and 28 press flatwise on the end portions of the upper transverse frame member 2 and on the inclined portions 25 of the sill 3 causes the frame members to come together in exact alinement, and tightening of the nuts clamp the frame members together in exact alinement.

What I claim is:--

A knock-down metal window frame consisting of upright and transverse members connectable together to form a substantially rectangular sash receiving opening, each of said members comprising a substantially flat sheet metal body strip having outwardly extending side flanges forming an outwardly facing channel, one member being arranged to lapthe end of the adjacent members and each adjacent member being formed with a flange at its end forming a shelf on which each end portion of the body strip of the said one member laps, one of the side flanges of each adjacent member extending beyond said shelf forming an angular pocket receiving the corner of the lapping portion of the body strip of said one member to locate and square the upright and transverse members at the corners, and fastening members extending through the shelf and the portion lapping the same.

OLIVER M. EDWARDS. 

